{"id":"CVE-2019-6553","aliases":["EUVD-2019-16112","GHSA-2q9x-jr84-x65p"],"status":"published","title":"A vulnerability was found in Rockwell Automation RSLinx Classic versions 4.10.00 and prior. An...","description":"A vulnerability was found in Rockwell Automation RSLinx Classic versions 4.10.00 and prior. An input validation issue in a .dll file of RSLinx Classic where the data in a Forward Open service request is passed to a fixed size buffer, allowing an attacker to exploit a stack-based buffer overflow condition.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.66341,"percentile":0.99287,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121","CWE-787"],"published":"2019-04-04T18:59:09Z","modified":"2026-06-17T02:39:14Z","products":[{"vendor":"rockwell automation","product":"rslinx classic"},{"vendor":"rockwellautomation","product":"rslinx"}],"references":[{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-19-064-01","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-6553"},{"url":"https://github.com/advisories/GHSA-2q9x-jr84-x65p"}],"sources":{"cve":[{"id":"CVE-2019-6553","description":"A vulnerability was found in Rockwell Automation RSLinx Classic versions 4.10.00 and prior. An input validation issue in a .dll file of RSLinx Classic where the data in a Forward Open service request is passed to a fixed size buffer, allowing an attacker to exploit a stack-based buffer overflow condition.","status":"published","published":"2019-04-04T18:59:09Z","modified":"2024-08-04T20:23:21.569Z","cwes":["CWE-121"],"updated_at":"2026-11-02T14:20:23.697579Z"}],"euvd":[{"id":"EUVD-2019-16112","description":"A vulnerability was found in Rockwell Automation RSLinx Classic versions 4.10.00 and prior. An input validation issue in a .dll file of RSLinx Classic where the data in a Forward Open service request is passed to a fixed size buffer, allowing an attacker to exploit a stack-based buffer overflow condition.","status":"published","published":"2019-04-04T18:59:09Z","modified":"2024-08-04T20:23:21Z","updated_at":"2026-11-03T03:06:49.204502Z"}],"ghsa":[{"id":"GHSA-2q9x-jr84-x65p","title":"A vulnerability was found in Rockwell Automation RSLinx Classic versions 4.10.00 and prior. An...","description":"A vulnerability was found in Rockwell Automation RSLinx Classic versions 4.10.00 and prior. An input validation issue in a .dll file of RSLinx Classic where the data in a Forward Open service request is passed to a fixed size buffer, allowing an attacker to exploit a stack-based buffer overflow condition.","status":"published","published":"2022-05-13T01:14:51Z","modified":"2023-02-01T05:04:31Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:50:09.90532Z"}],"nvd":[{"id":"CVE-2019-6553","description":"A vulnerability was found in Rockwell Automation RSLinx Classic versions 4.10.00 and prior. An input validation issue in a .dll file of RSLinx Classic where the data in a Forward Open service request is passed to a fixed size buffer, allowing an attacker to exploit a stack-based buffer overflow condition.","status":"published","published":"2019-04-04T19:29:01.727Z","modified":"2026-06-17T02:39:14.83Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-02T14:05:09.523883Z"}]}}